CN111082587B - Motor and end cover for motor - Google Patents
Motor and end cover for motor Download PDFInfo
- Publication number
- CN111082587B CN111082587B CN201811221067.2A CN201811221067A CN111082587B CN 111082587 B CN111082587 B CN 111082587B CN 201811221067 A CN201811221067 A CN 201811221067A CN 111082587 B CN111082587 B CN 111082587B
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- end cover
- stator
- section
- motor
- end cap
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention discloses a motor and an end cover for the motor. The electric machine comprises a stator and an end cover, and is characterized in that the circumferential inner wall of the end cover is provided with a first section and at least one second section, the second section is provided with a bulge, the bulge is configured to be inwards protruded relative to the first section in the radial direction of the stator and is used for abutting against the circumferential outer wall of the stator, so that radial acting force along the radial direction is provided between the stator and the second section, and a gap is kept between the first section and the circumferential outer wall of the stator in the radial direction. The invention can effectively improve the problems of vibration, noise, impact and the like in the existing motor, has low manufacturing and assembling cost and quick and convenient assembling operation, and can ensure the continuous and effective vibration and noise reduction effect.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a motor and an end cover for the motor.
Background
A large number of various types of electrical machine products have been provided in the prior art, which are widely used in numerous devices, apparatuses or systems to serve people's activities of daily work, production and life. However, the motor may generate vibration, noise, and shock during operation. In this regard, many technical means have been adopted to solve the above problem, for example, rubber vibration damping members are disposed between some parts inside the motor, which can achieve certain effects. However, these prior art approaches still have problems such as failure to ensure that the damping and noise reduction effects are continuously effective, inconvenient and time-consuming assembly operations, easy loss of damping materials, high manufacturing and use costs, and the like.
Disclosure of Invention
In view of the above, the present invention provides an electric machine and an end cover for an electric machine that effectively solves or alleviates one or more of the above problems and other problems existing in the prior art.
First, according to a first aspect of the present invention, there is provided an electric machine comprising a stator and an end cover, a circumferential inner wall of the end cover having a first section and at least one second section, the second section having a projection provided thereon, the projection being configured to project inwardly of the first section in a radial direction of the stator for abutment against a circumferential outer wall of the stator such that a radial force in the radial direction is provided between the stator and the second section, and the first section and the circumferential outer wall of the stator maintain a gap in the radial direction.
In the motor according to the present invention, optionally, a notch portion is provided between at least one side of the second segment and the adjacent first segment.
In the motor according to the present invention, optionally, a bottom of the notch portion is configured in a circular arc shape.
In the electric machine according to the invention, optionally, the second segments are provided with 4, which are uniformly arranged along the circumferential direction of the end cover; and/or the convex portion is configured to have an arc shape having the same arc as the circumferential outer wall of the stator.
In the electric machine according to the invention, optionally, the second section is provided with a stiffness K, which is calculated according to the following calculation:
where E is an elastic modulus, I is a moment of inertia, and l is a length of the second section in an axial direction of the end cap.
In the motor according to the present invention, optionally, the end cover includes a front end cover and a rear end cover, the protruding portion is disposed on the front end cover, at least one first mating portion and at least one second mating portion are respectively disposed on the front end cover and the rear end cover, and the second mating portion is adapted to the first mating portion to achieve positioning between the front end cover and the rear end cover.
In the motor according to the present invention, optionally, the first fitting portion is configured in a lug shape; and/or, the first fitting portion is provided with 4, which are uniformly arranged along the circumference of the front end cover.
In the motor according to the present invention, optionally, the end cover includes a front end cover and a rear end cover, the projection is provided only on the front end cover, and the rear end cover maintains a gap with a circumferential outer wall of the stator in the radial direction.
In the electric machine according to the invention, optionally, an elastic damping ring is arranged between the front end cover and the stator, and/or an elastic damping ring is arranged between the rear end cover and the stator.
Secondly, according to a second aspect of the invention, there is provided an end cap for an electrical machine, the end cap being an end cap in an electrical machine as claimed in any one of the preceding claims.
The principles, features, characteristics, advantages and the like of various aspects according to the present invention will be clearly understood from the following detailed description taken in conjunction with the accompanying drawings. For example, compared with the prior art, the technical scheme of the invention can effectively improve the problems of vibration, noise, impact and the like in the existing motor, not only can save the manufacturing and assembling cost, but also has quite quick and convenient assembling process, has little influence on the assembling process on the existing motor production line, and can ensure the continuous and effective vibration and noise reduction effect.
Drawings
The present invention will be described in further detail below with reference to the drawings and examples, but it should be understood that the drawings are designed solely for purposes of illustration and are not necessarily drawn to scale, but rather are intended to conceptually illustrate the structural configurations described herein.
Fig. 1 is a schematic perspective view of an embodiment of a motor according to the present invention.
Fig. 2 is an exploded view of the motor embodiment shown in fig. 1.
Fig. 3 is a perspective view of the front end cover in the motor embodiment shown in fig. 1.
Fig. 4 is another perspective view of the front end cover in the motor embodiment shown in fig. 1.
Fig. 5 is a partial schematic view of the front end cover in the motor embodiment of fig. 1.
Fig. 6 is another partial structural schematic view of the front end cover in the motor embodiment shown in fig. 1.
Fig. 7 is a schematic perspective view of a rear end cap in the motor embodiment shown in fig. 1.
Fig. 8 is a partial structural view of the rear end cap shown in fig. 7.
Fig. 9 is a partial cross-sectional structural schematic view of the motor embodiment shown in fig. 1.
Fig. 10 is a test signal comparison plot of a noise signal test using the motor embodiment shown in fig. 1 and an existing motor before modification.
Detailed Description
First, it is to be noted that the structural composition, features, advantages, and the like of the motor and the end cover for the motor of the present invention will be specifically described below by way of example, however, all the descriptions are for illustrative purposes only and should not be construed as forming any limitation on the present invention. For purposes of description herein, the technical terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and derivatives thereof shall relate to the invention as oriented in the figures, and it is to be understood that the invention may assume various alternative orientations; the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate their order or relative importance.
Furthermore, any single feature described or implicit in an embodiment or any single feature shown or implicit in the drawings or shown or implicit in the drawings may still allow any combination or permutation between the features (or their equivalents) to be performed, such that further embodiments according to the invention are considered within the scope of this disclosure. In addition, for simplicity of the drawings, identical or similar parts and features may be indicated in the same drawing only in one or several places.
Referring to fig. 1 to 9 in combination, the basic structural components of an embodiment of the motor according to the present invention are schematically shown in the drawings, and will be described in detail below.
First, as shown in fig. 1 and 2, in this embodiment, the motor 1 includes a front end cover 2, a rear end cover 3, a stator 4, and an elastic damping ring 5. It should be understood that other components provided in the motor 1, such as the rotor, brushes, etc., are not mentioned herein, but are simplified herein since their structure, function, etc., are known or appreciated by those skilled in the art and are not material to the present invention.
With respect to the front end cover 2 and the rear end cover 3 described above, it is possible to refer to them as a drive end cover, a brush end cover, or more other names that may exist, respectively, in some applications, but it should be understood that such two end covers are referred to herein as a front end cover and a rear end cover, respectively, by the engagement of which a motor internal space for accommodating therein components such as a stator 4 and a rotor may be provided.
As shown in fig. 2 and 9, by disposing the elastic damping ring 5 between the front end cover 2 and the stator 4 (and/or disposing the elastic damping ring 5 between the rear end cover 3 and the stator 4), the vibration energy transmission from the stator 4 to the front end cover 2 (and/or from the stator 4 to the rear end cover 3) can be effectively reduced, so that the problems of vibration, noise, impact, and the like generated in these parts and associated parts can be solved to a large extent.
The inventor of the present invention finds through a large number of experimental summary analysis that noise caused by end cover vibration is the most main cause of generating low-speed noise of a motor, and end cover vibration is mainly forced vibration caused by stator vibration, so that a path for transmitting vibration from a stator to an end cover is cut off, the low-speed noise can be effectively reduced, the smaller the radial acting force is, the better the vibration isolation effect is, the better the noise performance is, but the radial acting force is required to simultaneously support the dead weight and the vibration force of the stator during operation, so the magnitude of the radial acting force is preferably moderate.
For the stator 4, the vibration of the stator is the electromagnetic force from the interaction of the stator and the rotor when the motor works, the vibration of the stator 4 will cause the forced vibration of the front end cover 2 and the rear end cover 3, and the forced vibration of the front end cover 2 and the rear end cover 3 is the main source for generating the low-rotation-speed electromagnetic noise of the motor, so that the key for optimizing the low-rotation-speed noise is to separate the vibration transmission path of the stator 4 to the front end cover 2 and the rear end cover 3.
In the given embodiment of the machine, the front end cap 2 has an improved structural configuration. For example, as shown in fig. 2, 3, 4, etc., the circumferential inner wall of the front end cap 2 may be provided with a first section 21 and a second section 22, and a projection 23 may be provided on the second section 22. The protrusion 23 may be configured to protrude inward in the radial direction of the stator 4 relative to the first segment 21, so that it will abut against the circumferential outer wall of the stator 4 after assembly, thereby providing a radial force between the stator 4 and the second segment 22 in the radial direction of the stator 4, which will help to effectively improve or eliminate some of the vibration, noise, and impact problems generated inside the existing motor; at the same time, a gap g is maintained in the radial direction between the first segment 21 and the circumferential outer wall of the stator 4, i.e. no radial forces exist between them.
As described above, when the above-described exemplary embodiment according to the present invention is adopted, the front cover 2 and the rear cover 3 are engaged by the first engaging portion 25 and the second engaging portion 31 corresponding to each other, so that a fixing space is formed after they are assembled, and the stator 4 is placed in the fixing space, which is supported and damped by the elastic damping ring 5 in the axial direction, and supported and positioned by the protrusion 23 of the front cover 2 in the radial direction. The front end cap 2 (or the rear end cap 3) can receive the elastic damping ring 5 via corresponding structural features 27 (or 32), by means of which the elastic damping ring 5 can serve to damp the transmission of vibrations of the stator 4 in the axial direction to the front end cap 2 and the rear end cap 3.
Radial vibrations of the stator 4 will be isolated by corresponding projections 23 (which may have a smaller value of stiffness K) on the front cover 2 for damping the radial transmission of vibrations of the stator 4 to the front cover 2. Furthermore, a radial force is applied between the portion 41 on the circumferential outer wall of the stator 4 and the front cover 2 by means of the projection 23, so that the desired gap g can be effectively maintained between the stator 4 and the first section 21 of the front cover 2 for a long period of time, and since only the projection 23 on the second section 22 is in abutting contact with the stator 4, this will reduce the actual contact area between the stator 4 and the front cover 2, so that the vibration energy transmitted from the stator 4 as a vibration energy excitation source to the front cover 2 can be effectively reduced. In this way, the problems of vibration, noise, and shock that are present in existing motors can be very effectively improved or avoided. In an alternative case, such as shown in fig. 3 to 6, a gap 24 may be provided between the second segment 22 and the adjacent first segment 21 to better reduce or block the vibration energy transfer from the stator 4 to the second segment 22 and then to the first segment 21 adjacent to the second segment 22. By way of example, the notch 24 may be provided on only one side of the first section 21, or the notch 24 may be provided on both sides of the first section 21, which may be flexibly arranged according to specific application requirements. In addition, in practical applications, the bottom of the notch 24 may be formed in a circular arc shape or any other suitable shape.
As shown in fig. 4, it is exemplarily shown that 4 second segments 22 are provided on the front end cap 2. In an alternative case, the second sections 22 may be arranged uniformly in the circumferential direction of the front end cap 2. Of course, in practical applications it is possible to arrange these second sections 22 freely, without necessarily having to be distributed evenly on the front cover 2.
As an exemplary comparison test of technical effects, a test signal comparison plot of the modified motor embodiment of fig. 1 versus a prior art motor prior to modification for a noise signal test is shown in fig. 10, with motor speed (rpm) on the abscissa and acoustic power level lwa (dba) on the ordinate. As shown in fig. 10, curve a represents the noise test signal of the existing motor before the improvement, and curve B represents the noise test signal of the modified motor embodiment, it can be found by comparison that, for the electromagnetic noise of the motor operating in the low speed range (< 3000 rpm), the electromagnetic noise performance of the motor can be significantly improved by using the technical solution of the present invention.
The general structure, composition, operating principle and technical advantages of the motor according to the invention have been described in detail above by combining the motor embodiments shown in the above figures, but it must be explained that the invention allows for a wide variety of possible flexible designs, changes and adjustments according to the actual application without departing from the gist of the invention.
For example, although the motor embodiment is shown in which corresponding structural modifications are made with respect to the front end cover 2, it should be noted that structural modifications that are the same as or similar to those of the front end cover 2 may also be made in the rear end cover 3 in the present invention. That is to say, it is in fact entirely possible to implement the design concept according to the invention on the rear end cap 2 side and/or on the rear end cap 2 side in order to be able to better meet the various practical requirements. For example, in some alternative embodiments, only the protruding portion 23 may be provided on the front end cover 2 as shown in fig. 9, while the rear end cover 3 maintains a gap s in the radial direction with the circumferential outer wall of the stator 4, which may cause the stator 4 not to transmit vibration to the rear end cover 2 in the radial direction.
By way of further example, in the foregoing discussion, the electric machine 1 is illustrated as being provided with both a front end cap 2 and a rear end cap 3. However, it should be noted that in some practical applications, it is possible to provide only one end cover for the motor, and structural improvements such as providing the first section, the second section, and the protrusion can be made to the end cover according to the design concept of the present invention discussed above, so as to achieve the aforementioned good technical effects.
In addition, in some alternative embodiments, a first mating portion 25 (fig. 3 and 4) and a second mating portion 31 (fig. 7) that are adapted to each other may be provided on the front end cover 2 and the rear end cover 3, respectively, so as to achieve the fitting positioning between the front end cover 2 and the rear end cover 3 by the mating therebetween. As for the first engaging portion 25 and the second engaging portion 31, their specific number of arrangement, arrangement position, shape, and the like can be flexibly selected and set according to the design idea of the present invention. For example, the first fitting portion 25 may be configured in the shape of a lug or the like, and one or more grooves 26 or the like, for example, are provided on the first fitting portion 25 for fitting positioning. For another example, 4 first fitting portions 25 may be uniformly arranged in the circumferential direction of the front end cover 2.
In addition, in some alternative embodiments, the projections 23 may be configured to have an arc shape with the same curvature as the circumferential outer wall of the stator 4 in order to achieve better interference contact therebetween. Of course, the invention also allows the projection 23 to be configured in any other suitable shape in order to meet different application requirements.
In addition, according to the actual application requirement, the following calculation formula can be used to design and manufacture the second section 22 with the required rigidity K:
in the above calculation formula, E is the modulus of elasticity, I is the moment of inertia, and l is the length of the second section 22 in the axial direction of the end cover.
Furthermore, in alternative embodiments, the above-described elastic damping ring 5 may be configured in an L-shape or other suitable shape. In addition, it may be possible in some applications to allow the omission of the elastomeric damping ring 5 on the front end cap 2 side and/or on the rear end cap 3 side.
In view of the technical advantages that the electric machine according to the present invention has over the prior art, the drawbacks and disadvantages of the prior art as described above are overcome. Particularly, except for improving the end cover structure, no other changes are brought to the assembly process on the motor production line, the cost can be saved, the implementation is easy, the electromagnetic noise performance of the improved motor can be obviously improved, and the motor is very suitable for mass production, and has positive significance for improving the quality of motor products, improving the satisfaction degree of users and the like.
In addition, the invention also provides an end cover for the motor, and the end cover can be a single end cover or can comprise two end covers (namely a front end cover and a rear end cover). Since the specific structure, mounting arrangement, performance characteristics, technical advantages and the like of such end caps have been described in great detail in the foregoing, reference may be made directly to the detailed description of the corresponding parts, which will not be repeated here.
The motor and the end cap for the motor according to the present invention have been explained in detail above by way of examples only, which are provided only for illustrating the principle of the present invention and the embodiments thereof, and not for limiting the present invention, and those skilled in the art can make various modifications and improvements without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to be included within the scope of this invention and defined in the claims which follow.
Claims (9)
1. An electric machine (1) comprising a stator (4) and an end cover, wherein the circumferential inner wall of the end cover has a first section (21) and at least one second section (22), wherein the second section (22) is provided with a projection (23), wherein the projection (23) is configured to project inwardly in the radial direction of the stator (4) with respect to the first section (21) for abutting against the circumferential outer wall of the stator (4) such that a radial force in the radial direction is provided between the stator (4) and the second section (22) and the first section (21) maintains a gap (g) in the radial direction with the circumferential outer wall of the stator (4), characterized in that a gap (24) is provided between at least one side of the second section (22) and the adjacent first section (21).
2. The motor (1) according to claim 1, wherein a bottom of the notch portion (24) is configured in a circular arc shape.
3. The electrical machine (1) according to claim 1, wherein the second segments (22) are provided with 4, which are evenly arranged along the circumference of the end cover; and/or the protruding portion (23) is configured to have an arc shape having the same arc as the circumferential outer wall of the stator (4).
4. The electrical machine (1) according to claim 1, wherein the second section (22) is arranged to have a stiffness K, calculated according to the following calculation:
wherein E is an elastic modulus, I is a moment of inertia, and l is a length of the second section (22) in an axial direction of the end cap.
5. The electric machine (1) according to claim 1, wherein the end cap comprises a front end cap (2) and a rear end cap (3), the protrusion (23) is provided on the front end cap (2), at least one first mating portion (25) and at least one second mating portion (31) are provided on the front end cap (2) and the rear end cap (3), respectively, the second mating portion (31) is adapted to the first mating portion (25) for enabling positioning between the front end cap (2) and the rear end cap (3).
6. The electric machine (1) according to claim 5, wherein the first fitting portion (25) is configured in a lug shape; and/or the first fitting portion (25) is provided with 4 pieces which are uniformly arranged along the circumferential direction of the front end cover (2).
7. The electric machine (1) according to claim 1, wherein the end cover comprises a front end cover (2) and a rear end cover (3), the protrusions (23) are provided only on the front end cover (2), and the rear end cover (3) maintains a gap (g) with a circumferential outer wall of the stator (4) in the radial direction.
8. The electric machine (1) according to claim 5, wherein an elastic damping ring (5) is arranged between the front end cover (2) and the stator (4) and/or an elastic damping ring (5) is arranged between the rear end cover (3) and the stator (4).
9. End cover for an electrical machine (1), characterized in that the end cover is an end cover in an electrical machine (1) according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221067.2A CN111082587B (en) | 2018-10-19 | 2018-10-19 | Motor and end cover for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221067.2A CN111082587B (en) | 2018-10-19 | 2018-10-19 | Motor and end cover for motor |
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| Publication Number | Publication Date |
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| CN111082587A CN111082587A (en) | 2020-04-28 |
| CN111082587B true CN111082587B (en) | 2021-08-17 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101646869A (en) * | 2007-04-02 | 2010-02-10 | 大金工业株式会社 | Compressor |
| CN101741181A (en) * | 2008-11-26 | 2010-06-16 | 德昌电机(深圳)有限公司 | Motor for field of heating ventilation air conditioning |
| CN202768498U (en) * | 2012-07-05 | 2013-03-06 | 佛山市建准电子有限公司 | Motor damping base |
| CN104333152A (en) * | 2014-11-14 | 2015-02-04 | 广东美芝制冷设备有限公司 | Stator punching, motor and compressor |
| CN204886519U (en) * | 2015-08-10 | 2015-12-16 | 苏州金莱克汽车电机有限公司 | Car motor element with riveting shock -absorbing structure |
| CN105262264A (en) * | 2015-11-09 | 2016-01-20 | 昆山联滔电子有限公司 | Flat vibration motor |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19706852A1 (en) * | 1997-02-21 | 1998-09-03 | Bosch Gmbh Robert | Holding device for an electric motor |
| DE102009000010A1 (en) * | 2009-01-02 | 2010-07-08 | Robert Bosch Gmbh | Electrically commutated electrical machine |
| CN202612135U (en) * | 2012-04-24 | 2012-12-19 | 上海酷风汽车部件有限公司 | Evaporator fan for automobile air conditioner |
| CN102737146B (en) * | 2012-06-12 | 2014-03-12 | 中国科学院工程热物理研究所 | Engineering method for estimating critical rotation speed of rotor |
| CN203014541U (en) * | 2012-11-06 | 2013-06-19 | 德昌电机(深圳)有限公司 | Torque transmission device and a vehicle transmission system having same |
| CN103107653B (en) * | 2013-02-07 | 2015-02-04 | 上海博泽电机有限公司 | Damage prevention dismounting device and dismounting method of small-scale motor |
| CN104539082B (en) * | 2014-12-31 | 2018-03-27 | 广东威灵电机制造有限公司 | The waterproof sealing structure and plastic packaging motor of plastic packaging stator and bearing (ball) cover |
| CN204597698U (en) * | 2015-04-14 | 2015-08-26 | 成都华川电装有限责任公司 | There is the alternating current generator of vibration insulation structure |
| CN205336021U (en) * | 2016-01-16 | 2016-06-22 | 温岭市阳一机电有限公司 | Motor with heat dissipation end cover |
| CN205453382U (en) * | 2016-02-29 | 2016-08-10 | 广东威灵电机制造有限公司 | Motor damping assembly , motor and air conditioner |
| US10436242B2 (en) * | 2016-12-20 | 2019-10-08 | Zhejiang Jiecang Linear Motion Technology Co., Ltd. | Telescopic transmission assembly and lifting column using same |
| CN207134888U (en) * | 2017-06-29 | 2018-03-23 | 广东美芝制冷设备有限公司 | Motor, compressor and refrigeration plant |
| CN107294255A (en) * | 2017-08-15 | 2017-10-24 | 罗伯特博世电机（中国）有限公司 | Electric motor end cap and the motor with it |
| CN207835259U (en) * | 2018-01-22 | 2018-09-07 | 中山大洋电机股份有限公司 | A kind of motor with mounting bracket |
| CN207977854U (en) * | 2018-04-03 | 2018-10-16 | 富田电机股份有限公司 | Motor apparatus with rapid cooling effect |
-
2018
- 2018-10-19 CN CN201811221067.2A patent/CN111082587B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101646869A (en) * | 2007-04-02 | 2010-02-10 | 大金工业株式会社 | Compressor |
| CN101741181A (en) * | 2008-11-26 | 2010-06-16 | 德昌电机(深圳)有限公司 | Motor for field of heating ventilation air conditioning |
| CN202768498U (en) * | 2012-07-05 | 2013-03-06 | 佛山市建准电子有限公司 | Motor damping base |
| CN104333152A (en) * | 2014-11-14 | 2015-02-04 | 广东美芝制冷设备有限公司 | Stator punching, motor and compressor |
| CN204886519U (en) * | 2015-08-10 | 2015-12-16 | 苏州金莱克汽车电机有限公司 | Car motor element with riveting shock -absorbing structure |
| CN105262264A (en) * | 2015-11-09 | 2016-01-20 | 昆山联滔电子有限公司 | Flat vibration motor |
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| CN111082587A (en) | 2020-04-28 |
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